Like the title reads. I have a stock 5R55S automatic out of a 2006 GT. I was going to convert to the auto, but I have chosen to go another direction. I bought this and had it shipped from Pennsylvania to Houston. This would be a good unit to rebuild as an upgrade on the side, so you have no downtime on your dd. My understanding when I purchased it was that it is in good shape and is fully operable, but my intentions were always to rebuild it.